In 2017, then-water minister Barnaby Joyce approved a deal which saw the Department of Agriculture and Water Resources buy water from Eastern Australia Agriculture, a company co-founded by current Energy Minister Angus Taylor.
The company is controlled by Eastern Australia Irrigation which is based in the Cayman Islands, a well-known tax haven.
Angus Taylor served as a director of the Australian company in 2008 and 2009 but severed his ties before entering the parliament in 2013.
He has put out a statement saying he did not have an interest in Eastern Australia Agriculture, did not receive a benefit from the sale and did not take part in the negotiations over the water sale.
